memory access violaton when call dll

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Guan

I wrote a simple program to test the dll function, but each time got a memory violation warning.

The code in blitz3D:

bankin=CreateBank(6000)
bankout=CreateBank(6000)
CallDLL("TestDll","Test",bankin,bankout)

The code in VC for the DLL:

_declspec(dllexport) int _cdecl TestDll(const void *pIn,void *pOut)
{
*pOut=1;
return 1;

}

It seems the line "*pOut=1" caused the violation. Why?